arboreous vs arboresque

arboreous and arboresque both are adjectives.

Word	Noun	Adjective	Verb	Adverb
arboreous	No	Yes	No	No
arboresque	No	Yes	No	No

As adjectives, arboreous and arboresque are synonyms defined as:

arboreous and arboresque: resembling a tree in form and branching structure

Other synonyms of arboreous include arboreal, arborescent, arboriform, dendriform, dendroid, dendroidal, tree-shaped, treelike.

arboreous (adjective)	arboresque (adjective)
inhabiting or frequenting trees	resembling a tree in form and branching structure
resembling a tree in form and branching structure
abounding in trees